“The gate of Hell” from Darvaza – Turkmenistan is actually a very deep crater that burns without pause for the last 40 years now. In the 1970’s the soviets wanted to exploit the natural gas reserves in the area and geologists started digging , however the soil collapsed giving free acces to the massive gas pocket below. Fearfull of the poisonous gasses released they light the crater on fire , hoping it will go out in a few days like in other cases , but it didn’t. The locals call it the burning gates of hell because of it’s constant flame from the deepness of the Earth , it is trully a unique phenomenon on Earth.